/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.felix.metrics.osgi.impl;

import java.util.concurrent.CountDownLatch;

import org.apache.felix.metrics.osgi.StartupMetrics;
import org.apache.felix.metrics.osgi.StartupMetricsListener;

class WaitForResultsStartupMetricsListener implements StartupMetricsListener {
    
    private final CountDownLatch latch = new CountDownLatch(1);
    private StartupMetrics metrics;

    @Override
    public void onStartupComplete(StartupMetrics metrics) {
        this.metrics = metrics;
        latch.countDown();
    }

    public StartupMetrics getMetrics() {
        try {
            latch.await();
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new RuntimeException(e);
        }
        return metrics;
    }
    
}